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Preliminary Data Sheet April 1999
980-Type UltrahighReliability Pump Laser Module
Applications
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Undersea optical transmission systems Ultrahigh reliability optical communications for military systems
Description
The 980-Type Pump Laser Module is a precision, high-performance, ultrahigh-reliability lightwave component that provides high output power light, in the 980 nm range. The 980-Type Pump Laser Module is comprised of a single-mode laser diode, PIN backfacet monitor, microlensed single-mode fiber, and a Fiber Bragg Grating (FBG) for improved stability, all encased in a specially designed 14-pin, oxygen free, butterfly package.
The 980-Type Ultrahigh-Reliability Pump Laser Module is ideally suited for fiber amplifier-based optical transmission systems that require a long-term life expectancy.
Features
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Extremely high reliability -- Laser-welded packaging technology used to attain ultrastable long-term operation -- 29-year life Planar InGaAs PIN photodiode monitor for laser back-facet output Wide range of stable CW optical output power Individually certified for ultrahigh reliability InGaAs ridge waveguide 980 nm single-mode laser diode Standard low-profile, laser-welded, metal, hermetic, 14-pin butterfly package Single-mode fiber with Bragg Grating (FBG) for stable operation Stable single spatial mode kink-free operation over a wide range of temperatures and currents
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The 980-Type Pump Laser Module is capable of providing a wide range of output power in the 974 nm to 984 nm wavelength range for erbiumdoped amplifier (EDFA) system application. The pump laser module is designed and individually certified for high-reliability operation and long-term life expectancy. The 980 nm InGaAs laser chip utilizes a ridge guide design for high performance and reliability. Chip and facet parameters are optimized for stabilized optical coupling and efficient pumping of the EDFA. The laser package design also includes a microlensed single-mode fiber and a planar InGaAs PIN back-facet photomonitor assembled in a modular organic-free hermetic package. Laser welding technology is used for critical joints to achieve long-term stability. Data is archived for at least ten years. Each module is fully characterized and traceable. Long-life performance and reliability are ensured through extensive steps of burn-in, overstress, and power aging. The 980-Type Pump Laser Module is available with a typical power output range of 20 mW to 70 mW.
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980-Type Ultrahigh Reliability Pump Laser Module
Preliminary Data Sheet April 1999
results for each 980-Type Pump Laser Module are then examined to ensure that only the pump laser modules that exhibit performance consistent with long-term system operation are selected for product. Each 980-Type is individually serialized for full traceability and is shipped with the appropriate test data. The 980-Type assembly, test, and certification facilities have all passed the rigorous qualification process required for all facilities that manufacture devices employed in undersea applications. Also, on an ongoing basis, small quantities of product from each manufacturing lot are retained and tested as part of a surveillance program for undersea devices. Each surveillance group is subjected to the complete spectrum of environmental/mechanical stresses required during the qualification process. The surveillance results are reviewed and compiled so that long-term trends can be studied. The reliability performance of the 980-Type Pump Laser Module is a result of a rigorous qualification process combined with an extensive and ongoing surveillance program.
Description (continued)
The 980-Type Pump Laser Module has been specifically designed for undersea optical amplified very high capacity transmission systems that require long-term life expectancy. The extremely stringent reliability requirements imposed on the 980-Type (necessary to achieve long-term system life) are accomplished through careful design, exacting manufacture, and thorough testing. The 980-Type qualification plan consists of a basic set of electro-optic and mechanical tests designed to confirm the performance and reliability of the module over its projected service life under assumed operating conditions. Custom designed, extended qualification test programs can be developed to focus on customer system requirements. Based on the results of qualification testing, a certification program has been developed to ensure the highreliability performance of the devices. Each 980-Type device undergoes this certification process where the performance parameters are measured before, during, and after environmental stresses. The certification
Pinout Information
Top View.
7 6 5 4 3 2 1
8
9
10
11
12
13
14
1-675(F).e
Figure 1. Pinout Schematic
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Lucent Technologies Inc.
Preliminary Data Sheet April 1999
980-Type Ultrahigh Reliability Pump Laser Module
Mounting Instructions
The minimum fiber-bend radius is 25 mm. Connection To avoid degradation in performance, mount the module on the board as follows (see Figure 2): 1. Place the bottom flange of the module on a flat heat sink at least 0.5 in. x 1.180 in. (12.7 mm x 30 mm) in size. The surface finish of the heat sink should be better than 32 in. (0.8 m), and the surface flatness must be better than 0.001 in. (25.4 m). Mount four #2-56 screws with Fillister heads (M23 mm) at the four screw hole locations (see Outline Diagram). The Fillister head diameter must not exceed 0.140 in. (3.55 mm). Do not apply more than 2 in./lb. of torque to the screws. To minimize package distortion, it is recommended that a washer is used above and beneath each mounting foot.
Pinout Information (continued)
Table 1. Pinout Descriptions Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Chassis Ground Chassis Ground Photodetector Anode Photodetector Cathode Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Pump Laser Anode Pump Laser Cathode Chassis Ground Chassis Ground Chassis Ground
Electrostatic Discharge
Caution: This is a Class 0 ESD device which is susceptible to damage as a result of electrostatic discharge (ESD). Take proper precautions during both handling and testing. Follow JEDEC Publication No. 108-A (Dec. 1998).
Handling Precautions
0.118 (3.00) 0.086 (2.18)
0.062 (1.58) 0.031 (0.79) 0.140 (3.56)
0.129 (3.28) 0.041 (1.04) Note: Dimensions are inches and (millimeters).
1-532(F)
Lucent employs a human-body model (HBM) and the field-induced charged-device model (CDM) for ESDsusceptibility testing and protection design evaluation. ESD voltage thresholds are dependent on the critical parameters used to define the model. A standard HBM (resistance = 1.5 k, capacitance = 100 pF) is widely used and, therefore, can be used for comparison purposes. The HBM ESD threshhold presented here was obtained using these circuit parameters: Parameter Charged-device Model Human-body Model Value 200 400 Unit V V
Figure 2. Fillister Head Screw
Power Sequencing
Adopt the following sequence for turn-on as a matter of good practice to avoid the possibility of damage to the pump laser module from power supply switching transients: 1. All ground connections 2. Most negative supply 3. Most positive supply 4. All remaining connections Reverse the order for the proper turn-off sequence. Lucent Technologies Inc. 3
980-Type Ultrahigh Reliability Pump Laser Module
Preliminary Data Sheet April 1999
Absolute Maximum Ratings
The LPM will stay certified if it is operated at the maximum rating, for brief periods. Exposure to maximum ratings for extended periods can adversely affect device reliability. Parameter Storage Temperature Range Operating Temperature Range Laser Reverse Voltage Laser Forward Current Laser Reverse Current Fiber Output Power PIN Monitor Reverse Voltage PIN Monitor Forward Current Pigtail Pull Force (Axial) Pigtail Bend Radius Shock Vibration (10 Hz to 2000 Hz) Symbol Tstg TOP VR IF IREV PF VPIN IFPIN F RP G VIB Min -20 0 -- -- -- -- -- -- -- 25 -- -- Max 60 40 2 400 50 150 40 2 9 -- 100 5 Unit C C V mA A mW V mA N mm G G
Characteristics
Table 2. Electrical Characteristics Parameter Operating Voltage (CW, 70 mW fiber output) Operating Current (CW, 70 mW fiber output) Monitor Reverse-Bias Voltage Monitor Current I = IOP Monitor Dark Current (VDET = -5 V) Table 3. Optical Characteristics Parameter Optical Output Power Adjustment* Kink Power Center Wavelength Power Tracking (over 25 C interval) Weighted RMS Spectral Width Output Spectrum Side-mode Suppression Optical Return Loss at Pigtail (1525 nm--1570 nm) Reliability. Over 29 Years at the Max Operating Conditions of Figure 2. Symbol PO PK c POT RMS SUPP RL Min Max Unit mW mW nm dB nm dB dB Symbol VOP IOP VRMON IRMON ID Min -- 100 -- 0.3 -- Max 2.2 200 40 2.0 25 EOL 2.2 250 -- 2.0 -- Unit V mA V mA mA
15 70 85 -- 974 984 -- 0.6 -- 0.7 -- 20 13 5% failures at 25 C
* Depending on the exact requirements, there may be two codes (deep and shallow water) necessary.
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Lucent Technologies Inc.
Preliminary Data Sheet April 1999
980-Type Ultrahigh Reliability Pump Laser Module
Characteristics (continued)
Table 4. Physical Characteristics Parameter Pigtail Fiber Type Jacket Type Fiber Length Between FBG and LPM Fiber Length Beyond FBG Minimum Radius of Curvature Connector Type Description Single-mode Lucent Technologies Optical Fiber Lightguide Lucent Technologies Minicord, 1.55 mm O.D. 1.1 m 1.5 m--2.0 m 25 mm FC/APC
Ordering Information
Device Ultrahigh-Reliability Pump Laser Module Part Number 980X Comcode TBD
Lucent Technologies Inc.
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980-Type Ultrahigh Reliability Pump Laser Module
Preliminary Data Sheet April 1999
Class IIIb Laser Product
This product complies with 21 CFR 1040.10 and 1040.11. Single-mode connector Wavelength = 0.98 m Maximum power = 70 mW Because of size constraints, labeling is not affixed to the module but is contained in the shipping carton. Product is not shipped with power supply. Caution: Use of controls, adjustments, and procedures other than those specified herein may result in hazardous laser radiation exposure.
DANGER
INVISIBLE LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM. Indium Gallium Arsenide Laser 70 mW Maximum Output @ 0.98 m Class IIIb Laser Product Complies with 21 CFR 1040.10 and 1040.11
DANGER: Invisible laser radiation when disconnected and fiber removed.
AVOID DIRECT EXPOSURE TO BEAM.
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Lucent Technologies Inc.
0.600 (15.24) 0.212 (5.38) 0.020 (0.51) 0.430 (10.92) LEAD 7 0.368 (9.35) 0.008 (0.20) 0.215 (5.46) LEAD 1 0.100 (2.54)
Outline Diagram
Lucent Technologies Inc.
0.105 (12.67) DIA 0.350 (8.89) 0.336 (8.53) LEAD 8 LEAD 14 1.024 (26.01) 1.180 (29.97) 2.050 (52.07) 0.078 (1.98)
Preliminary Data Sheet April 1999
0.500 (12.70)
0.500 (12.70)
Dimensions are in inches and (millimeters). Tolerances are 0.005 in. (0.127 mm).
0.820 (20.83) 0.655 (16.64) 10.0 (254) MIN JACKET JOIN 0.120 (3.05) DIA
43.0 (1092) MAX GRATING 14.0 (356) MIN FIBER SPLICE 3.00 (76.2)
59.0--78.0 (1499--1981)
PINCHED VACUUM TUBE
PROTECTIVE CAP
0.010 (0.25) 0.215 (5.46)
CONNECTOR REF 0.060 (1.52) DIA
980-Type Ultrahigh Reliability Pump Laser Module
1-1008(F).r1
0.20 (0.51)
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For additional information, contact your Microelectronics Group Account Manager or the following: INTERNET: http://www.lucent.com/micro, or for Optoelectronics information, http://www.lucent.com/micro/opto E-MAIL: docmaster@micro.lucent.com N. AMERICA: Microelectronics Group, Lucent Technologies Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18103 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA PACIFIC: Microelectronics Group, Lucent Technologies Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256 Tel. (65) 778 8833, FAX (65) 777 7495 CHINA: Microelectronics Group, Lucent Technologies (China) Co., Ltd., A-F2, 23/F, Zao Fong Universe Building, 1800 Zhong Shan Xi Road, Shanghai 200233 P R. China Tel. (86) 21 6440 0468, ext. 316, FAX (86) 21 6440 0652 . JAPAN: Microelectronics Group, Lucent Technologies Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700 EUROPE: Data Requests: MICROELECTRONICS GROUP DATALINE: Tel. (44) 1189 324 299, FAX (44) 1189 328 148 Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK)
Lucent Technologies Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Copyright (c) 1999 Lucent Technologies Inc. All Rights Reserved
April 1999 DS99-112LWP

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